Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual é a menor porcentagem de arremessos, quando o número de finais em branco é maior que 6?
 ###Tabelas: CREATE TABLE compounds_from_marine_sources_in_clinical_level (compounds_from_marine_sources_in_clinical_level_id AUTO_INCREMENT PRIMARY KEY, Clinical Status VARCHAR, Compound Name VARCHAR, Trademark VARCHAR, Marine Organism α VARCHAR, Chemical Class VARCHAR, Molecular Target VARCHAR, Clinical Trials β VARCHAR, Disease Area VARCHAR) CREATE TABLE win_loss_record (win_loss_record_id AUTO_INCREMENT PRIMARY KEY, Club VARCHAR, Active VARCHAR, Wins INT, Losses INT, Draws INT, Percentage wins VARCHAR, Flags INT) CREATE TABLE standings (standings_id AUTO_INCREMENT PRIMARY KEY, Province VARCHAR, Skip VARCHAR, Ends Won INT, Ends Lost INT, Blank Ends INT, Stolen Ends INT, Shot Pct. INT) CREATE TABLE by_council (by_council_id AUTO_INCREMENT PRIMARY KEY, Council VARCHAR, TUV INT, Democratic Unionist INT, Ulster Unionist INT, Alliance INT, SDLP INT, Sinn Féin INT, Green (NI) INT, Independent INT, Others VARCHAR, Total INT) CREATE TABLE 2011_2012_table (2011_2012_table_id AUTO_INCREMENT PRIMARY KEY, Club VARCHAR, Played VARCHAR, Drawn VARCHAR, Lost VARCHAR, Points for VARCHAR, Points against VARCHAR, Tries for VARCHAR, Tries against VARCHAR, Try bonus VARCHAR, Losing bonus VARCHAR, Points VARCHAR)  
SELECT MIN Shot Pct. FROM standings WHERE Blank Ends > 6